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Decomposition of substances due to heat is called ________________________.
Thermal decomposition
Formation of steam from a boiling kettle is an of what physical change?
Evaporation
Phase change from liquid to solid.
Freezing
What type of physical change if matter changes from solid to liquid.
Melting
In what process does formation of ice frosts on windows and leaves in other countries.
Deposition/Gas to solid
Melting of an ice cube to water is an example of what type of physical change or phase change?
Melting
Metabolism is an example of _________________ change.
Chemical
Property of matter that can be observed without changing the identity of an object.
Physical property
The important factors involved in the chemical change caused by oxidation in metals are ___________________.
oxygen and moisture in air
This property has an ability of matter to form a new substance.
Chemical property
Pertains to the waste that are able to break down into very small parts or has an ability to decay.
Biodegradable
A type of solid waste which is not capable of being broken down or decay.
Non-biodegradable
The ability of a material to allow light to pass through.
Transparency
Fixing broken things so that they can be used again such as sewing and mending old clothes.
Repair
Kind of waste management producing new materials such as making decorations, vases and figurines from used/scap papers.
Recycle
Refers to the used or consumed products or materials. Example of this is garbage that emits foul odor.
Waste
Harmful material that can harm /poison living things like bleaching agents, detergents, and dishwashing liquid.
Toxic
It is a useful and renewable material used in construction, it is said to be an extremely versatile material.
Wood
These are substances that help you get well such as pain relievers, ointment, and cough syrup.
Medicines
A flexible material that can recover its shape after considerable deformation.
Rubber
Household material used to kill harmful insects, aphids, and blights.
Insecticides
What are the three states of matter?
Solid, liquid and gas
A useful material wherein it is made up of large amount of silica from fine sand combined with smaller amounts of soda and lime. It is commonly used due to its transparency.
Glass
Is an anything that occupies space and has mass.
Matter


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